The hydrodynamic regime at John Brewer Reef, Great Barrier Reef: Mooring CM8: Current Meter

An Aanderaa RCM current meter was attached to mooring CM8, which was deployed in 46m of water. Deployment Details:Date Deployed: 4/4/1987Date Recovered: 5/9/1987Instrument Deployed:RCM #4327; Depth: 23m
The aim of this project was to collect field data to calibrate a numerical model for the combined tidal and wind-forced circulation at John Brewer Reef, and to apply those circulation patterns to calculate the trajectories, residence times and likelihood of outbreaks of crown-of-thorns starfish on areas of the reef.
The transect CM3, CM8 and CM9 was laid to investigate the interaction between John Brewer Reef and Lodestone Reef. These reefs are only 7km apart and by studying both reefs at the same time it was possible to consider inter-reefal recruitment of crown-of-thorns starfish as well as self-seeding. The current meter attached to mooring CM9 (deployed 3/4/87) was not recovered.The locations for moorings CM6, CM7, CM8 and CM12 were chosen on the basis of results from a complementary project, where numerical models of hydrodynamics and dispersion were used to simulate the wind, tidal, long-period current and wave circulation around GBR reefs, for examination of dispersal of larvae of the crown-of-thorns starfish.

安德拉RCM海流计（Aanderaa RCM current meter）挂载于锚系CM8，该锚系布设于46米水深海域。部署详情：布放日期：1987年4月4日；回收日期：1987年5月9日；布放仪器：RCM #4327；布设深度：23米。
本项目旨在采集现场实测数据，以校准约翰·布鲁尔礁（John Brewer Reef）处潮汐与风力共同驱动环流的数值模型，并利用该环流模式计算该礁域内长棘海星（crown-of-thorns starfish）的迁移轨迹、滞留时长以及爆发概率。
布设CM3、CM8与CM9观测断面，旨在探究约翰·布鲁尔礁与磁石礁（Lodestone Reef）之间的相互作用。两座礁体间距仅7公里，通过同时对两处礁体开展研究，可同时分析长棘海星的礁间幼体补充与局地自播现象。
布设于锚系CM9的海流计（布放日期：1987年4月3日）未能回收。
锚系CM6、CM7、CM8及CM12的布设点位，参考自一项互补研究的结果。该研究利用水动力与输运扩散数值模型，模拟了GBR 大堡礁（Great Barrier Reef）周边礁体海域的风力、潮汐、长周期海流及波浪环流，以研究长棘海星幼体的扩散过程。